Is the customs code of metal bar? Customs clearance can be air conditioning accessories

< P> metal insulation nails, is what material, iron or copper. Nails also has a lot of kinds, flat head screw, screw, is different. Classification, detailed information is required. Not classified as air-conditioning accessories. Specified is a nail. < / P> < P> HeJian heat preservation nail factory news and information. < / P>